Shackle



Patented May 29, 1923.l

q VumidaA Sres f ROBERT G. PI

LKINGTON, or CHICAGO, f LLIlvoIs.y l Y. ,SHACKLEQ c i .Application and mvember 1o, 1919. 4seriaifno, 336,800.

the following is aspecififcation.

My inventionfrelatesfto a shackley and more particularly to vashackle'which is used p rimarily in connection with-leaf "springs on vehicles ofl various types.

Shackles of this general type are provided vwith,v tWo :weight carrying members,

theseusually beingbolts or pins, one acting` asl af pivotalf' connection between "the `shackle and a bracketsecured to the underframe 'of thevehicle and the other as a pivotalv connection between the shackle and the spring. lThesemembers are "held fin, parallel links. y.

Theprimary objecty of my invention is the provision of a shackle of simple, and strongconstruction, yinexpensive to make, and kywhich may be easilyand quicklyy dis assembled," and repaired should' one `of its partsbreak. v

A further objectvv of my invention lis to form the *connecting links for' the shackle separately so that'the sides'of the links may be ground or otherwise 'finished in relatively large vquantities conveniently and quickly. f 1 1 A further .object of my Ainvention is .to providea shackle lin which the. weight carrying members or'pins are held in positionk and lagainst relative' movements 4by improved .key retaining means Vassociated with one or both of the connecting links, the pins preferably" being of one diameter throughout. e

A further object of my uinvention is' to provide'a shroud or in co-mbination with the side connecting links and weight carrying pins so formed that itwill 'engage and hold the pins against relative movements and also prevent4 deformation'of the shackle.

-Still another object of my inventiony is toV provide a shackle'in which theweight carryingpins, in combination with the key retaining means, arel formed so thatafter becomingworn on oneside 'they' may `be turnedppartially, thereby substantially increasing the usefulness of the pins;

The invention consists inA the novel arrelationship by suitable 'connecting retainingmeans V.Y

. also to housing for the shackley ...rangements cfonstructionsand devices tothe hereinafter describedv and `claimed forcarrying out the above stated Objects and such other incidentalobj'eets as will appear fromVV the following description of Icertain preferredv embodiments of vthe. invention :illustrated' inthe -Vaccompanying drawings,in

which-I' Fi-g.u1 isJ a fragmentary nectedto a'bracket securedy to the underframe of a vehicle by means'gof a shackle embodying the; principles ofmy invention.

perspective view illustrating a.y portion -of aleaf springcon- F 1g. 2 .isa side elevationaliviewof "the 'Fig. 2.

Fig. 5v isla side,elevationalfview vof. a

shackle illustrating` amodifiedform 'of'pin ,i 'l

Flg- 6 S a Side `elevational viewff' -a' e shackle A .illustrating a; of pin yretaining-means7 the latter serving and reduced Y Fig. 6.

further'. modification,

v prevent deformation of the shackle,

Like characters ofl reference' desnginatel likeparts inthe several views. e

The shackle comprises weight carrying pins 10 and 11'v fastened together bysuitable connecting links 12, 12, the pinsfl() and 11 being held against relativevv movements by suitable key retainingmeans 'des-r ignated generallyby the reference numeral 13.` The pin 10 is 'adaptedfto .pass through a depending flug 14 formedv on a bracket member 15, which may be s ofrany suitable form or shape, secured to the underframe 16 of the vehicle;` The lower pin V11 is adapted .to be inserted through ythe loop formed` on theendfof the leaf spring 17 The weight carrying .pins 10 andr 11 may be held in position and againstv relative movementsin a `number of waysfronly cerdrawings.. In Figs. l toe inclusive,rthe retaining means 13l ycomprises .a U-shaped member, the arms 18k of which are adapted tain preferred' forms being shown in' the Fig. 7 isfanfend elevationall view, onfa.

scale, ofl the shackle` shown 1n8'5 rlos to embrace the .connecting links V12. .The

pinsr 10 and @l1-fare formed'vpreferably ad'- jacent each end, withfiat4 bearing surfaces,

preferably infthe form' vof transverse, i. bottomed grgoves 19,'wh1ch are rformed- 1n.

any suitable manner and adapted to receive the edges of the arms 18 of the retaining member 13. 1n this form the pins 10 anc 11 are turned so that the fiat bearing surfaces or grooves 19 face each other, the top and bottom edges of the arms 18 being machined so that the armskwill lit accurately and tightly between the pins and 11 as clearly shown in Fig. 2. The arms 18 are each preferably secured to the connecting link 12 by means of a cap screw 20, a lock washer 9.1 being provided to prevent the screw from working loose. Each of the arms 18 constitutes a key plate which effectively engages the fiat bearing surfaces on the pins 10 and 11 'and holds the' pins against relative movement. Preferably the pins 10 and 11 are formed on each endy with oppositely disposed flatvbearing surfaces on grooves 19 so that after becoming worn. on one side the pins may be turned partially thereby substantially doubling the life of the pins. 1f desired passageways 2i), may` be formed in the pins 10 and 11 and oil cups Q3 connected therewith for the purpose of lubrication.

lt will be observed that the pins 1() and 11 are generally ofn one diameter throughout which reduces the machine work to a minimum. 1n disassembling the device it is merely necessaryto take out the screw or screws 20,1as the case may be, drive. the key retainingmeans backwardly out of engagement with the pins 10 and 11 and then drive the connecting links off the ends of the pins, 'these links not being otherwise connected to each other. rlhis operation may be done quickly and easily even though` the shackle be under a heavy load. The Ll-shaped retaining member 13 tendsto prevent deformation ofl the-shackle, that is to say, it prevents relative'movements of the connecting links 12. I

1n the form shown in Fig. 5 the pins 10 and 1l are turned so that the bearing surfacesf19 face laterally these being substantially parallel with the vertical aXis of the shackle. kThe arms 18 of the key retaining member 13 in this form are wider and short @er than in the form firstdescrilgied. and are adapted tobear against the bearing surfaces 19 -when in the position lastmentioned.

In fthe form shown in Figs. 6 and 'i the the 4member ,13 is .in the form of a shroud or a .dish-shaped housing, the ends Q3 thereof being bent around at substantially right .angles to-the backweb 26 .and also being cut away in the center so that the inner oppo- `site faces 24iwillbear.againstthc outer bearing surfaces 19 of the pins 10 and 11, the

,sides 25 .thereof ,also being bent .around at :subs'tantiaflly v.right angles to .the back lweb 26 to kprovide stiffening means. This form of housing, therefore, is Ui-shaped both .with

respect to its vertical axis and its horizontal y'formed with a axis. This form of vshackle is particularly useful 'on trucks which are subjected to heavy duty. rllhe dish-shaped member 13 eifectively prevents 4relative movements of the pins 10 and 11 and of the connecting F links 12.

The pins 1() and 11 are preferably formed of'steel, case hardened and proper diameter. The connecting links `'l2 are preferably drop forgings. 4The niembers 13 are preferably steel stampings. There are several advantages in making the connecting links separately. y For example, they may both be. formel from the` same pattern or die; a large quantity' of them may be held by a magnetic clutch and one face ground, the position reversed and the other .face ground, the finishing operation thus being reduced to a minimum, and the same links may be used for springs of various widths.

It will be obvious to those skilled in the art that various modifications may be made without departing from the spirit of' `my invention, and I do not intend to limit the invention to the constructions, arrangements and devices shown and described' except only in so far as certain of the appended claims are specifically so limited.`

I claim:

1. A shackle comprising a pair of links formed with registering perforations, weight carrying pins adapted to `be inserted in Said perforations, said pins each being formed with flat surfaces, a U-shaped retaining member associated with said links, certain edges of the arms of said member bearing against the respectivelat surfaces of the'` pins, and means to secure said member against movement relative to saidV links, for the purposedescriloed.

2. A shackle comprising a pair of links formed with registering perfortions, weight carrying pins adapted to be inserted in said perforations, said pins each being formed on each end with a transversely extending groove, a U-shaped retaining member associated w`th said links, certain. edges of the arms of said member bearingr against the bottoms of said respective grooves, and means to secure said member against movenient relative to said links, for the purpose described. c i

A shackle comprising a pair of links formed with registering perforations, weight carrying pins adapted to be inserted in said perforations, said pins eachwbeing .flat surface arranged to face outwardly, a U-shaped plate, the arms ,of which are adapted to embrace the kends `of said pins, the inner ,sides of the arms `bearing against said flatsurf-aces and means to secure the plate to one lof said links.

4i, A shackle comprising a pair of links formed with ground to the a registering perfoi:ations,1

` formed rWeight carryingv v1n said perforations,'sa1d pms veach being weight carrying pins adapted to be yinserted in said formed with a fiat surface on each end ar'- ranged to face outwardly, a U-shaped rel taining member adapted to embrace said links, the arms of Which are also vU-shaped and adapted to embrace the ends of said pins, the inner sides thereof bearing against said fiat surfaces, and means to secure the retaining member to said links.

5. A shacklecomprising a pa-ir of links with registering perforations, Weight carrying pins adapted to be inserted in said perforations, said pins each being formed With a flat surface on each end arranged to face outwardly, a rectangular' dish-shaped housing, the ends of which are adapted to embrace said links, said end portions being U-shaped and adapted to emlinks, the sides of said housing being bent at substantially right angles to the main Web of the housing. f

6. A shackle comprisinga pair of links formed with registering .v perforations, pins adapted to be inserted formed with a flat surface onk each end, a rectangular dish-shaped housing, the ends of which are'adapted to embrace said-links,

said end. portions being formed so as to bearn against the fiat surfaces on said pins, means to secure the housing to the links, the sides of the housing being formed at substantially right angles to the main Web of the housing.

7. Ashackle comprisingA a-pair of links formed With registering perforations,

Weight carrying pins adapted to beinserted said pins each being' in said perforations, formed with a flatbottomed groove', aretaining ymember adapted to embrace said links, the arms of Which are adapted to bear against the bottoms iof said grooves, and means to secure said member-to one of said links. i

l8. A shackle comprising a pair of llinks formed With registering perforations, Weight carrying pins adapted to be inserted in said perforations, formed with a flat bottomed groove adjacent each end, a rectangular dish-shaped housing, the ends of which are adapted to embrace said links, saidend portions being formed perforations, said pins each being registering. brace the ends of said pins they inner sidesV length and` provided adapted to co-operate With bearingsurfaces on saidmember, for the purposedescribed.-

said pins each being vSLA shackle pendentllinks formed be insertedin vsaid retaining memberadapted to embrace said links, the arms `of vwhich bear against `the 7 flat surfaces of the pins, and means tosccure said member toone ofsaid links 'Where-"f by said pinsareeheld against'relati've move-f ment.

l0, Inashackle'offa class described lthe the sidesjof the housing being formed at substantially right' angles to. the main. web o f the housing. v

comprising a pair of inde- With registering per-y forations, We'ightcarrying pins, adapted to 1 f f perforations, `said pins eachbeing-formedfwith a, flat surface, a.

col

combination v,of a pair of links formed With l f perforations,

p s Weightcarrying' pinsadapted to be inserted in fsaid perfora-vA tions, saidl pins eachbeing formed with a i at,surface,.a U-shaped retaining membe1 adapted to `embracesaid links, thearms of which" are adaptedvto bear vagainst the flat sf surfaces of the pins and means to connect the 'arms 'to' the Vassociated links/wherebyv and said'linkslare held against said pins relative4 movement.

1.1. A shackle comprising a pair of links ,registering perforations, l

pins adapted to be 'inserted formed With Weight carrying in said perforations, a U shaped retaining member associated. with lSaid links, andi?.

means' to secure said member against move-1 v ment relative to said links, said pins being of uniform'l 'diametervv lthroughout ltheir formed With` registering perforations,

With bear `surfaces 'l Weight carrying pins' adapted-to'be inserted km said perforations, a dish-shaped retain# said links they end and side portions ofv which are formed ing vmember associated `With at substantially right anglesto the main-r4 Web thereof, and means to'securesaid.meni-V ber againstmovcment relative'tosaidlinks,V f

said pins being of uniform ldiameter throughout their length and provided Withf bearing surfaces adapted to co-operatewith bearing surfaces on purpose described.

said member, for the -i i ROBERT s." rILKiNGToN. 

